我们用到的类库为:Newtonsoft.Json,通过VS工具中NuGet程序包可以下载。
一:对象转json-序列化
public class Student{ public int ID { get; set; } public string Name { get; set; } public int Age { get; set; }} //第一种:单一实体类 Student s = new Student(); s.Age = 18; s.ID = 1; s.Name = "张三"; string json = Newtonsoft.Json.javaScriptConvert.SerializeObject(s);//序列化对象(对象转json) //第二种:List<T>泛型 和上边方法相同 List<Student> list = new List<Student>(); for (int i = 1; i < 5; i++) { Student stu = new Student(); stu.Age = i + 12; stu.ID = i; stu.Name = "No."+i.ToString(); list.Add(stu); } json = Newtonsoft.Json.JavascriptConvert.SerializeObject(list);
二:json转对象 - 反序列化
//json只有一条数据 JavaScriptObject obj = (JavaScriptObject)JavaScriptConvert.DeserializeObject(json); string Name = obj["Name"].ToString();//取出某一字段 Response.Write(Name); //json只有一条数据 Student ms = (Student)JavaScriptConvert.DeserializeObject(JavaScriptConvert.SerializeObject(obj), typeof(Student));//json转对象 Response.Write(ms.Name); //json有多条数据 JavaScriptArray javascript = (JavaScriptArray)JavaScriptConvert.DeserializeObject(json); List<Student> slist = new List<Student>(); for (int i = 0; i < javascript.Count; i++) { JavaScriptObject temp = (JavaScriptObject)javascript[i]; Student model = (Student)JavaScriptConvert.DeserializeObject(JavaScriptConvert.SerializeObject(temp), typeof(Student)); slist.Add(model); }
//4.0方法
List<Student> slist = JsonConvert.DeserializeObject<List<Student>>(json);
Response.Write(slist[0].Name);
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